Math, asked by dearfriends1, 2 months ago

prove that cos 12 +cos 84 + cos 132 + cos 156 = -1/2

Answers

Answered by vaibhavsahu5299

0

Step-by-step explanation:

need some point but dont and answer sry and please heart

Previous Question

Next Question

Similar questions

Math, 1 month ago

8. The following table shows the ages (in years) of 28 teachers of a school. Find their mean age. settes Solu Age in years 25 29 30 33 40 44 48 Number of teachers 8 5 2 3 2 3 5 ...

English, 1 month ago

Write any four uses of internet.

English, 1 month ago

global warming face book vs facing the book ?

Science, 2 months ago

After fertilization , ovule develops into the *...

Hindi, 2 months ago

please give me answer...

Math, 8 months ago

write 2 statements for the following expression 10a...

English, 8 months ago

What is the name of phatik's brother?

Social Sciences, 8 months ago

the natural environment includes both .....and ...... compounds...